Radiator.



J.'W. HULZ. RADIATOR. APPLICATION FILED 141112.29, 1912.

Patented Nov. 10, 1914 gl'wm wtoz John W. H012 1 ills/ J'OLEl'N \V, I-IOLZ. OF DETROIT, MICHIGAN.

Spcciiirulion of Leitcrs "forest.

RADIATUR.

i uiouirii Nor. ill. Hill.

Application filed Lllforch '21). 1912. Serial Flo. 687.056.

siding or ileh-oiia, in theeouniy oi llomno I and Stole of iiiiohiga-n, have inrenii-rd certain ui-u' and useful Improvements in Rodionus, of which the following is u SPQClfiCYL- tiou, reference being had therein to the uecoinpuuying drawings.

in the construction of radiators for outomobiles, condensers or the like it is clesirw ole that the fluid therein be divided as much as possible to present the greatest area to the radiating or cooling; surface and that the parts he so disposed as to direct air from one to the other and thereby increase the efficiency of the operation.

This involution relates to a radiator and more particularly one adopted for use with ill automobiles and to an arrangement thereof wl'zereby the cooling liquid is so divided us to present a very large area per unit oi'vol nine in contact with the "radiating surfaces and so that these radiating surfaces themselves direct the air currents through the ru-iliu'ror in such manner as to thoroughly cool diom.

e '11 niion consists in the matters horoin fire!" set forth and more particularly poinfiecl out in the appended claims.

in thedrowings, Figure 1 is o view in front elevation of a radiator that embodies features of the invention, and Fig. 2 is a view in transverse seclsion through the rudiator.

Referring: to the drawings a hollow base '1 is held in separated spaced relation with a hollow header 2 by a plurality of upright tubes which in turn are steadied by tronsrersely lisp fin pistes 4: or like members for sir-mirror, ihe tubes horizontally and increasing too radiating surfaces thereof. Preferably the header and base are formed of sheet metal. and their inner walls are perforated lo receive the tubes, the metal struck up from tho perforations being outturned us flanges to secure the tube ends. The iuliies themselves are substantially tri angular in section with their spices directed toward the front of the radiator, and. are disposed in staggered relation so um; the wind our-routs p Easing between any tier of tubes uro directed thereby against rho lzubos oi the sul coeding tier. With ihe ueui e poo tions of the tubes 8 disposed bolzu'een tho that I, Join; W. llom, u min-ion oi" tho limited States oi America, rv-

7 mil-s oi tubes of the tiers in front, the curwhim of uir um bullied and directed from w ill lo wall, llieroiu/ insuring automatic eon-- tau-t ol' the .lll' with the tubes. By this conslrurl'iun u ruiiiutoz' is obtained. thut previous u very large area of rzuiiuting surfaces m,- rolnme of inclosed fluid in the radiating pipes. The 1'21 (listing eil'cct. is further enhanced by the disposition of the tubes which directs the air currents so that. suliistuntiully ull the air that passes through the radiator comes in Contact at one time or another with the tube walls. While herein shown as espooizilly urlupteii for cooling liquid in a nilculutwing system it is equally adapted for use as {L condenser and other purposes where it is desiruble to present as large on area. per unit oi volume of the liquid as possible.

()bviously, changes in the details of mu struciion may be made without departing from the spirit of the invention and I do not cure to limit myself to any particnizir form or arrangement of parts.

W'hui: I claim as my invention is:

l. A. radiator comprising a hollow buss, a hollow header, tiers of upright tubes connecting the base and header, the tubes being substantially triangular in cross section with their spices directed toward the front of the radiator and extended between the tubes of the tier in front of them, thereby avoiding straight and direct air passages through the radiator from the front thereof.

A radiator comprising a hollow base,

ahollow header, tiers of upright tubes conmeeting the base and header, the tubes of one tier being staggered in relation to those of an adjacent tier, the tubes being substantially triangular, in cross section with their spices directed lowurd the front of the indiam and rrrenllwl lwlwren the cubes in the tier in front oi thcn'i', thereby avoiding straight and direct uir passages through the radiator from the front thereof.

3. A. rmllutor munprising a hollow base, :1. hollow heiu'lor, tiers of upright tubes eon hosting-y; iiho i'lilfiv? :uul hrzuler, the tubes of one tier boingg staggered in relation to those oi an adjacent tier, the Lulus being substanr radients? fi'em the 10m thereof and in in .egpaeesi relation thmugh which the A radiator eel uprising a bellow base, a, .el'lew header, tiers of upright tubes e0n- 1 w 3 1 7 knee and header, the tubes bentieiiy triangular in cross sec heir apices directed toward the i101 andi extenciecl between tiers in frent of them and 1e in pi eximiey enema t0 the Walls of adjacent tubes mm mediate the angle edges xiii-elem: ehereby avoiding straight anci direct through the redieter from the frame e lleeeeil In testimony 'Whereef I my in presence of two Witnesse JQHN Evil? j Wimesses1:

ANNA M. Dene; 

